<template>
  <!-- 两步验证 -->
  <a-modal
    centered
    v-model="visible"
    @cancel="handleCancel"
    :mask-closable="false">
    <div
      slot="title"
      :style="{ textAlign: 'center' }">
      两步验证
    </div>
    <template
      slot="footer">
      <div
        :style="{ textAlign: 'center' }">
        <a-button
          key="back"
          @click="handleCancel">
          返回
        </a-button>
        <a-button
          key="submit"
          type="primary"
          :loading="stepLoading"
          @click="handleStepOk">
          继续
        </a-button>
      </div>
    </template>

    <a-spin
      :spinning="stepLoading">
      <a-form
        layout="vertical"
        :auto-form-create="(form)=>{this.form = form}">
        <div
          class="step-form-wrapper">
          <p
            style="text-align: center"
            v-if="!stepLoading">
            请在手机中打开 Google Authenticator 或两步验证 APP<br>输入 6 位动态码
          </p>
          <p
            style="text-align: center"
            v-else>
            正在验证..<br>请稍后
          </p>
          <a-form-item
            :style="{ textAlign: 'center' }"
            has-feedback
            field-decorator-id="stepCode"
            :field-decorator-options="{rules: [{ required: true, message: '请输入 6 位动态码!', pattern: /^\d{6}$/, len: 6 }]}">
            <a-input
              :style="{ textAlign: 'center' }"
              @keyup.enter.native="handleStepOk"
              placeholder="000000" />
          </a-form-item>
          <p
            style="text-align: center">
            <a
              @click="onForgeStepCode">遗失手机?</a>
          </p>
        </div>
      </a-form>
    </a-spin>
  </a-modal>
</template>

<script>
export default {
  props: {
    visible: {
      type: Boolean,
      default: false
    }
  },
  data () {
    return {
      stepLoading: false,

      form: null
    }
  },
  methods: {
    handleStepOk () {
      const vm = this
      this.stepLoading = true
      this.form.validateFields((err, values) => {
        if (!err) {
          console.log('values', values)
          setTimeout(() => {
            vm.stepLoading = false
            vm.$emit('success', { values })
          }, 2000)
          return
        }
        this.stepLoading = false
        this.$emit('error', { err })
      })
    },
    handleCancel () {
      this.visible = false
      this.$emit('cancel')
    },
    onForgeStepCode () {

    }
  }
}
</script>
<style lang="less" scoped>
  .step-form-wrapper {
    margin: 0 auto;
    width: 80%;
    max-width: 400px;
  }
</style>
